State Hub
Minnesota Water Quality
492
Utilities in database
4.6M
Residents served
35%
On private wells
2
Key contaminants tracked
Drinking Water in Minnesota
Minnesota has 492 community water systems serving approximately 4.6 million residents. Primary water sources include groundwater. The most commonly reported contaminants include arsenic, lead. 35% of Minnesota residents rely on private wells. MDH holds primary enforcement authority under the Safe Drinking Water Act.
Utilities in Minnesota
Top 20 of 492 by populationMinneapolis
MN1270024 · 425,300 served
Saint Paul Regional Water Services
MN1620026 · 392,529 served
Rochester
MN1550010 · 123,624 served
Bloomington
MN1270001 · 91,300 served
Brooklyn Park
MN1270005 · 89,995 served
Duluth
MN1690011 · 86,859 served
Woodbury
MN1820025 · 82,643 served
Maple Grove
MN1270020 · 82,000 served
Plymouth
MN1270044 · 76,546 served
Saint Cloud
MN1730027 · 71,321 served
Blaine
MN1020006 · 70,220 served
Eagan
MN1190007 · 68,223 served
Lakeville
MN1190015 · 67,300 served
Coon Rapids
MN1020017 · 64,000 served
Eden Prairie
MN1270010 · 63,726 served
Burnsville
MN1190002 · 61,747 served
Minnetonka
MN1270031 · 54,474 served
Edina
MN1270011 · 53,494 served
Apple Valley
MN1190001 · 50,300 served
Saint Louis Park
MN1270050 · 50,010 served
Key Contaminant Concerns in Minnesota
Lead
Lead is a naturally occurring heavy metal that was widely used in plumbing infrastructure until it was banned for new installations in 1986. An estimated 9.2 million lead service lines still connect homes to public water mains across the United States, along with millions of homes with lead solder in their internal plumbing.
Arsenic
Arsenic (As) occurs naturally in rock and soil, dissolving into groundwater through natural weathering processes. Inorganic arsenic — the form found in drinking water — is a known human carcinogen. The western United States has particularly arsenic-rich geological formations, but elevated levels have been found in 48 states. Arsenic is tasteless and odorless.
Minnesota Water FAQs
Quick Links
Data source: Utility data from EPA SDWIS. 492 active community water systems ingested. CCR contaminant data ingestion in progress.
Last updated: 2026-04-19